• FLOWER RESEARCH JOURNAL
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• v.18 no.4
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• pp.251-255
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• 2010

This study was conducted to investigate the detrimental effects of decapping and emasculation on the postharvest quality and the vase life of cut Cymbidium flowers with or without 1-Methylcyclopropene (1-MCP) and Aminoethoxyvinylglycine (AVG) treatments. The vase life treated by 1-MCP 150 ppb for four hours regardless of decapping or emasculation was significantly prolonged 12 days more. Ethylene production in the treatment without 1-MCP began to be raised from 7days, 1-MCP treatments, regardless of the concentration of processing did not occur until 15days. Ethylene began to production when the lip began to coloration. Compared to the 1-MCP effect, the AVG treatment of 0.5 and 1mM for four hours prolonged the vase life about nine days more. Whereas, the only decapping or emasculation treatments were effective to more three days longer in the vase life of cut Cymbidium' Halleluiah' flowers. 1-MCP treatment was very beneficial for Cymbidium 'Halleluiah' cut flowers than AVG.

• FLOWER RESEARCH JOURNAL
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• v.19 no.1
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• pp.42-48
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• 2011

This experiment was conducted to improve postharvest quality and extended vase life of Korean native Aster koraiensis Nakai for use as cut flowers. Aster koraiensis Nakai cut flowers were treated with various pretreatment and holding solution. Postharvest pretreatment with 3% sucrose + $200mg{\cdot}L^{-1}$ HQC + $50mg{\cdot}L^{-1}\;AgNO_3$ + $50mg{\cdot}L^{-1}$ BA and 3% sucrose + $200mg{\cdot}L^{-1}$ HQC + $50mg{\cdot}L^{-1}\;AgNO_3$ + $150mg{\cdot}L^{-1}$ citric acid for 16 hours extended vase life of cut Aster koraiensis Nakai flowers by 1.4 times as compared with the control (distilled water). Holding solution of 3% sucrose + $200mg{\cdot}L^{-1}$ HQC + $50mg{\cdot}L^{-1}\;AgNO_3$ + $50mg{\cdot}L^{-1}$ BA and 3% sucrose + $200mg{\cdot}L^{-1}$ HQC + $50mg{\cdot}L^{-1}\;AgNO_3$ + $150mg{\cdot}L^{-1}\;GA_3$ extended vase life of cut Aster koraiensis Nakai flowers by1.6 and 1.7 times as compared with control (distilled water). Aster koraiensis Nakai.flowers held in this preservative solution increased fresh weight and were maintained positive water balance for a long vase period. It was suggested that the vase life of cut Aster koraiensis Nakai flowers was closely related to fresh weight and water balance of the cut flower.

• Horticultural Science & Technology
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• v.17 no.3
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• pp.361-364
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• 1999

This study was conducted to examine the effects of pulsing treatment and to develop techniques treated right after harvest by grower for extending vase life and improving flower quality in cut freesia. Thirty minutes dipping treatment of STS 2 mM followed by 20 hr pulsing in sucrose 10% + BA 10 ppm + 8-HQS 300 ppm solution showed the best results in vase life and flower quality of cut freesia when kept in vase water. This pretreatment extended vase life by 24.7% than control, and improved quality of cut freesia significantly in flower diameter, percent flowering (35.4%), fresh weight, water uptake, and carotenoid content, and depressed ethylene production and respiration rate.

• Horticulture, Environment, and Biotechnology : HEB
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• v.59 no.6
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• pp.835-845
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• 2018

We studied the role of ethylene control in regulating energy metabolism, antioxidant enzyme activity, and vase life of cut rose Rosa hybrida 'Carola'. Rose flowers at stage II were sprayed with one of the following solutions: water (control), $10{\mu}L\;L^{-1}$ 1-methylcyclopropene (1-MCP), or $0.5g\;L^{-1}$ 2-chloroethanephosphonic acid (ethephon). After harvest, ethylene production rate, respiration intensity, energy charge (EC), activities of energy metabolism-related and antioxidant enzymes, and malondialdehyde (MDA) content were measured. Results showed that 1-MCP enhanced the activities of superoxide dismutase, $H^+$-adenosine triphosphatase, $Ca^{2+}$-adenosine triphosphatase, succinic dehydrogenase, and cytochrome c oxidase, increased adenosine triphosphate (ATP) content, maintained high EC levels, inhibited respiration intensity, reduced peroxidase (POD) and polyphenol oxidase (PPO) activity and MDA accumulation, and prolonged vase life. Ethephon promoted ethylene production and respiration intensity, increased POD and PPO activity, reduced ATP content and EC levels, and accelerated senescence. Our results support a novel role for ethylene control in regulating senescence of 'Carola'.

• FLOWER RESEARCH JOURNAL
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• v.19 no.3
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• pp.139-143
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• 2011

This research was conducted to figure out the effect of 1-methylcyclopropene, one of inhibitors of ethylene on the vase life of cut alstroemeria 'Alpine', snapdragon 'Fuji no Yuki', dahlia 'Toast, and lily 'Georgia'. Four kinds of cut flowers were treated with 250, 500, and 750 ppb of 1-MCP respectively for 12 hours. In case of cut alstroemeria, no significant difference was found between the untreated control and the treated ones in the days to flowering. The vase life in the treated ones, however, was extended for over two days, and the treated one with 250 ppb had the longest record with 17.1 days. In every treated ones of cut snapdragon, the remaining florets was more than that of the untreated control. The vase life showed, however, no difference. With the 1-MCP treatment, the vase life of cut dahlia was longer about two days than that of the untreated control. However, water uptake showed the opposite result. The vase life of cut lily showed no significant differences in all treatments. In case of water absorption, the treated one with 750 ppb uptaken more water by 3 ml.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.23 no.1
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• pp.27-36
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• 2017

In order to determine the relationship between water content and flower qualities of oriental hybrid lily cv. 'Siberia' cut flower, flowers were subjected to dry and cold storage at $5^{\circ}C$ for 3, 6, and 12 days and subsequently exposed to ambient temperature ($26^{\circ}C$) in bottles with water for up to 16 days. Flowers stored at $22^{\circ}C$ in dry condition for 3 days were used as the control. Changes in fresh weight, moisture content, water balance, flowering stages, osmolality and vase life of cut flowers were observed. Flowers treated with cold and dry storage had higher moisture content compared to control sample. However, this trend was evident only for 3-day cold and dry stored sample during the whole storage period. The fresh weight of cut flowers increased gradually when the samples were transferred to ambient temperature in water bottles and then declined steadily before reaching the peak in between 6-8 days of vase life. However, the changes of fresh weight of control sample were substantially faster than samples pre-treated with cold and dry storage. This was also correlated with the water balance of cut flower as it reached the minus (-) value in 6-8 days of vase life at ambient temperature. Cut lily flowers showed high osmolality values corresponding with the duration of dry storage regardless of low or higher temperature. However, osmolality had no effect on vase life since flower stem absorbed water rapidly at the end of dry storage period. Our vase life results suggest that cold and dry storage of lily cut flowers for a certain period could ensure longer vase life at ambient temperature. It was observed that prolonging the storage period at cold and dry condition for more than a week significantly increased bud abortion, reduced longevity of flowers and reduced the vase life of cut flowers. On the other hand, the shorter cold and dry storage treatment delayed the bud opening and senescence of the flowers, thus, slowering the normal maturation and aging. Results indicated that dry and cold storage at $5^{\circ}C$ for 3 days was effective in maintaining and preserving overall quality and vase life at ambient condition of oriental hybrid lily cut flowers.

• Horticultural Science & Technology
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• v.17 no.6
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• pp.762-764
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• 1999

This experiment was conducted to investigate the effect of pretreatments and storage conditions on quality and vase life of cut 'Red Sandra' rose (Rosa hybrida L.). 'Red Sandra' rose flowers were harvested and pulsed with distilled water, 0.2% RVB or 200ppm aluminum sulfate+3% sucrose+50ppm $AgNO_3$+0.1mM ethionine for 22 hours and then stored in wet or dry condition for 12, 24, 48 hours at low or room temperature. Pulsing with aluminum sulfate+sucrose+$AgNO_3$+ethionine delayed bent-neck, increased solution absorption and flower diameter, and prolonged vase life rather than pulsing with distilled water or RVB. Storage in wet condition or low temperature also delayed bent-neck, increased solution absorption and flower diameter, and prolonged vase life compared with storage in dry or room temperature condition. As the storage hours prolonged, solution absorption, flower diameter, and vase life were decreased especially pulsing with distilled water. Pulsing with aluminum sulfate+sucrose+$AgNO_3$+ethionine prolonged vase life compared to pulsing with distilled water or RVB regardless of storage conditions and shipping hours.

• FLOWER RESEARCH JOURNAL
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• v.19 no.3
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• pp.151-157
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• 2011

This research was aimed to extend the vase life and improve the quality of cut roses 'Marina'. This study investigated the effect of three different angles and sucrose concentration on the vase life and the quality of cut rose flowers. In first experiment, cut roses were placed in three different angles ($0^{\circ}$, $45^{\circ}$ and $90^{\circ}$) in holding solutions containing 0.5, 1 and 2% sucrose (soaking treatment), and examined the number of petals of cut roses. In second experiment, cut roses were placed in three different angles after pre-treated in 0, 1, 2 and 4% sucrose solution for 2 and 20 hours, and examined the flower diameter of cut roses. In third experiment, cut roses were examined the pigmentation, flowing response and chlorophyll contents in cut roses by three different angles after pulsing treatment (pre-treatment) in holding solution containing 2% sucrose for 2 and 20 hours. Results of this study showed that cut roses were influenced by arranging angles and sucrose concentrations. The vase life of cut roses were extended in $45^{\circ}$ and $90^{\circ}$ arranging angle, as compared with the control (distilled water), and the holding solution containing 2% sucrose significantly increased vase life of cut roses(P < 0.05). Flower diameter of cut roses pre-treated in 4% sucrose solution for 2 and 20 hours significantly decreased (P < 0.05). The pigmentation and flowing response in cut roses were beneficial in $45^{\circ}$ arranging angle treated with 2% sucrose solution for 2 and 20 hours. Chlorophyll content in leaves of cut roses was not influenced by arranging angles. The pigmentation and flowing response of $0^{\circ}$ and $45^{\circ}$ arranging angles were better than that of 90 arranging angle. The vase life of cut roses in $45^{\circ}$ arranging angle was more prolonged than that in $90^{\circ}$ arranging angle. In conclusion, the arranging angles seem to be effective in retarding senescence of cut rose flowers.

• FLOWER RESEARCH JOURNAL
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• v.18 no.2
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• pp.87-92
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• 2010

This research was aimed to extend the vase life, improve the cut flower quality and promote flowering rate of bulbous cut Iris 'Blue Magic'. Three different concentrations of 1-MCP ranging from 250 to $750nL{\cdot}L^{-1}$ were treated on cut Iris flowers for the vase life elongation. Several effects of 1-MCP treatment has shown such as early flowering as one day but vase life showed no significant differences comparing to the untreated control. Flowering rate was 75% or more in the treated ones as compare to 64.2% in untreated control. Especially, in a treatment with $250nL{\cdot}L^{-1}$ 1-MCP for 12 hours it showed all flowering. In many post-harvest experiments of cut flowers, ethylene production from flower organ has considered as most critical factor on vase life. Ethylene production from flower organ was measured by gas chromatography (GC) and it showed that there is no direct relation between flower longevity and emission of the ethylene gas in cut Iris. In comparison with the untreated control, ethylene generation rather seems to be increased as 1-MCP treatment increased. There was a synergy effect when 1-MCP and BA applied simultaneously in which flowering and vase life were fastened and also extended, respectively. Therefore, treatment of 1-MCP for cut Iris at flower early harvest is able to improve the flower quality both by diminishing non-flowering rate and by extended flower longevity.

• Journal of Life Science
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• v.10 no.6
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• pp.591-597
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• 2000

An investigation was conducted to elucidate the effect of sucrose, germicides and abscisic acid (ABA) in the preservatives on postharvest quality, such as fresh weight, solution uptake, vase life, diameter and thickness of flower, and chlorolhyll of leaf in cut chrysanthemum 'Kyoungsubang`. Fresh weight of cut chrysanthemum was highest in 250mg/L aluminum sulfate [{TEX}$Al_{2}(SO_{4})_{3}${/TEX}]+3% sucrose and 250 mg/L 8-hydroxyquinoline sulfate (8-HQS)+ 3% sucrose. Addition of sucrose and germicides inhibited microorganisms growth in solution, and apparently promoted solution uptake. The increased fresh weight seems to attribute to the elevated uptake. Germicide 8-HQS was more effective than {TEX}$Al_{2}(SO_{4})_{3}${/TEX} in the aspect of solution uptake and fresh weight. Treatment of 250 mg/L 8-HQS +3% sucrose showed the longest vase life (24.67±2.52 days) and the lowest rate of leaf chlorosis (or senescence). Addition of {TEX}$Al_{2}(SO_{4})_{3}${/TEX} and sucrose accelerated leaf chlorosis and increased diameter of flower, respectively. Sucrose treatment prolonged the vase life of flowers. Except control and 250 mg/L 8-HQS, content of chlorophyll was rapidly decreased after 6 days at upper, middle and lower leaves in order.